Cylinder for a backpack vacuum



FIG. 1 is a top view of a cylinder for a backpack vacuum showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front-right perspective view thereof; and,

FIG. 8 is a rear-left perspective view thereof. 

CLAIM The ornamental design for a cylinder for a backpack vacuum, as shown and described. 